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Helmer, Richard ,  Hespanhol, Ivanildo ,  World Health Organization ,  [Water pollution control : a guide to the use of water quality management principles]

World Health Organization ,  Candau, Marcolino Gomes ,  [The work of WHO, 1963: annual report of the Director-General to the World Health Assembly and to the United Nations]

World Health Organization ,  Candau, Marcolino Gomes ,  [The work of WHO, 1962: annual report of the Director-General to the World Health Assembly and to the United Nations]

World Health Organization ,  International Water Association ,  [Water safety plan manual: step-by-step risk management for drinking-water suppliers, Plans de gestion de la sécurité sanitaire de l'eau : manuel de gestion des risques par étapes à l'intention des distributeurs d'eau de boisson.Manual para el desarrollo de planes de seguridad del agua: método pormenorizado de gestión de riesgos para proveedores de agua de consumo.]

Dufour, Alfred ,  Bartram, Jamie ,  Bos, Robert ,  Gannon, Victor P.J. ,  World Health Organization ,  International Water Association ,  United States. Environmental Protection Agency ,  [Animal waste, water quality and human health / edited by Al Dufour … [et al]]